No, no rubbing. Here in the Okanagan (Mid southern BC) we had an early spout of upper 30's temps. the bears rubbed, then regrew early this year.

I was lucky enough to take this boar once we regrew his summer coat. Althought it is not as long as a winter coat, it is very very full withno rubs at all.

furthermore, I measured his skull to find that he is BC book minimum! One inch short of boone and crockett

Cheers